Jan ( N = 2642 )

Feb ( N = 2558 )

Mar ( N = 2640 )

Apr ( N = 2745 )

May ( N = 2600 )

Jun ( N = 2736 )

Jul ( N = 2853 )

Aug ( N = 2576 )

Sep ( N = 2535 )

Oct ( N = 2595 )

Nov ( N = 2742 )

Dec ( N = 2725 )